Inverted-V-shaped ring with knotless connection of main lines

Abstract

The invention discloses a main line knotless connection splayed ring comprising the following structures: a hollow cap, the top end of which is provided with a through hole; a sub-line connecting ring is rotatably arranged at the bottom end of the structural column; the connecting column is used for connecting the hollow cap and the structural column into an integrated structure; the bottom face of the hollow cap is provided with an annular blocking face, the inner diameter of the annular blocking face is larger than that of the penetrating hole, so that a knot of the main line which penetrates through the penetrating hole and is knotted is limited by the annular blocking face in a pull-back state, and therefore a knot-free self-locking connecting structure of the main line is formed. The bottom end of the structural column is provided with a cavity, and the sub-line connecting ring is rotatably arranged in the cavity, so that the sub-line can freely rotate by 360 degrees relative to the structural column in use. The structure can improve the connection strength, simplify the operation and improve the anti-winding performance, and is suitable for various fishing environments.

Description

Technical Field

[0001] The present invention relates to the technical field of fishing tackle manufacturing, and specifically relates to a swivel with a knotless connection for the main line. Background Art

[0002] Traditionally, the connection of fishing line sets is usually fixed by tying knots on small accessories such as swivels to fix the main line and the sub-line. However, this knot-tying connection method has obvious defects. First of all, tying knots will significantly weaken the tensile strength of the fishing line. The knot part can often only retain about half of the original line strength, resulting in a decrease in bearing capacity. The knot will also cause stress concentration and is extremely easy to break from the knot when bearing a strong rush or repeated pulling of a big fish. Secondly, the knot-tying operation is complex and difficult to complete quickly in a wet or low-light environment, making it inconvenient to use. In addition, the traditional swivel structure is two rigid metal rings at both ends. After the main line and the sub-line are fixed and bundled, there is little room for movement. When the fish rotates or swings violently in the water, the traditional connection will cause the sub-line to wrap around the main line due to the inability to rotate freely, resulting in high-frequency bending wear and increasing the risk of line breakage. In complex water environments such as fast-flowing water and undercurrents, these defects are more prominent, and situations such as line breakage and fish getting away are likely to occur, making it difficult to meet the high-strength, safe and reliable use requirements. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the above-mentioned deficiencies of the existing swivel connection method, and provide a swivel with a knotless connection for the main line, which can firmly connect the main line without tying knots and reduce entanglement when bearing dynamic loads.

[0004] To this end, the present invention provides the following technical solutions:

[0005] A swivel that can be connected without a knot,

[0006] including:

[0007] A hollow cap with a perforation penetrating through its top end;

[0008] A structural column, with a sub-line connection ring rotatably arranged at the bottom end of the structural column;

[0009] A connecting column for connecting the hollow cap and the structural column into an integral structure;

[0010] Wherein, the perforation is aligned with the center of the conical surface, and the bottom surface of the hollow cap is provided with an annular blocking surface with an inner diameter larger than the perforation, so that the main line knot passing through the perforation and tied is limited by the annular blocking surface in the state of being pulled back, thereby forming a knotless self-locking connection structure for the main line;

[0011] A cavity is provided at the bottom end of the structural column, and the sub-line connecting ring is rotatably arranged in the cavity, so that the sub-line can freely rotate 360 ​​degrees relative to the structural column during use, thereby avoiding entanglement and knotting when the force direction of the fishing line keeps changing.

[0012] The diameter of the perforation matches the target fishing line diameter, and the size of the perforation and the main line knot cooperate to form a limit self-locking function. The inner surface of the perforation is a smooth structure or a polymer coating is provided to reduce friction and improve protection. Preferably, the clearance of the perforation diameter relative to the target fishing line diameter is controlled within, for example, 5%, so as to achieve precise limit.

[0013] The inner edge of the annular blocking surface is provided with a chamfer or arc transition section to improve the fit of the fishing line when locked and prevent sharp angles from damaging the fishing line. The chamfer angle is 30° to 45° or transitions with a predetermined curvature radius, so that the line loop fits the blocking surface without being damaged when tightened, while increasing resistance to accidental slipping.

[0014] In order to further improve the efficiency of the main line in the penetration and the smoothness of the pull-back, the present invention preferably provides a conical surface at the top of the structural column, and the conical surface is aligned with the center of the through hole to guide the fishing line into the through hole. During the penetration or pull-back process, the main line can be quickly positioned to the center of the through hole under the guidance of the conical surface to avoid line deviation or jamming. Especially in on-site operations, it is difficult for anglers to accurately control the angle of the fishing line. The conical surface can effectively improve the threading efficiency and reduce the error rate, thereby improving the convenience of use and assembly speed.

[0015] The cavity is a cylindrical cavity, and the sub-line connecting ring is provided with a shaft shoulder or a limiting ring in the cavity to ensure that it can rotate in both axial and radial directions without falling out. A gap is left in the cavity for its rotation.

[0016] The hollow cap, the connecting column and the structural column are an integrated structure, and the material used is high-strength corrosion-resistant stainless steel.

[0017] The polymer coating is selected from one or more of polytetrafluoroethylene, polyimide or polyetheretherketone. On the one hand, the coating can prevent the metal parts from rusting due to long-term use in water, ensuring the durability of the device in freshwater and seawater environments; on the other hand, the coating provides a smooth surface to reduce the friction resistance of the fishing line and the connecting ring when rotating, further reducing the risk of wear and entanglement.

[0018] In summary, the knotless connected figure-eight ring provided by the present invention has significant beneficial effects compared with the prior art:

[0019] The connection strength is greatly improved: Since there is no need to tie knots, the present invention avoids the weakening of the strength of the fishing line by traditional knots, and the effective tension of the fishing line is fully retained, which significantly reduces the probability of line breakage under the impact of large objects. In addition, the self-locking structure of the through-hole limiter and the annular blocking surface becomes tighter and tighter under the action of tension, ensuring a stable and reliable connection that is not easy to loosen.

[0020] The locking method is safe and reliable: the invention adopts a passive limit self-locking design, and uses structural geometry to achieve automatic locking of the fishing line without relying on friction or adhesive fixation. Even if the fishing line is slippery or there is underwater mud and sand, the connection will not fail due to insufficient friction; at the same time, there is no chemical adhesive involved, which ensures the weather resistance and underwater durability of the connection.

[0021] Excellent anti-entanglement performance: The sub-line connecting ring of the present invention can rotate 360 ​​degrees freely relative to the main body. When the fish is hooked and violently swings, rotates or even impacted in multiple directions, the sub-line connecting ring can rotate synchronously with the force direction of the fishing line, actively eliminating the rotational torque and preventing the main line and sub-line from entanglement. Compared with the traditional rigidly connected figure-eight ring, this design performs better when fighting active fish species (such as high-speed rotating silver carp, eels, etc.), and is also suitable for reliable operation under different fish impact strengths.

[0022] Compact structure and intuitive operation: The present invention cleverly integrates the through-hole limit structure and the rotating connecting ring into a small main body, and the overall structure is compact without increasing the volume of the line group. When using it, the angler only needs to pass the fishing line head through the through-hole and tighten it to complete the connection. The operation is simple and intuitive, and no complicated knotting skills are required. It can also be quickly assembled at night or when operating with gloves, which improves the convenience in actual combat.

[0023] Detailed design improves durability: The precise matching of the through-hole size and the line diameter and the smooth transition design of the inner edge of the blocking surface ensure that the fishing line can be securely locked and wear is minimized when the force is applied to the fishing line, thereby extending the service life of the fishing line and the connector. Combined with the anti-corrosion and anti-friction effects of the special polymer coating, the present invention can maintain stable performance in long-term use and in complex waters (such as salt water, high acid and alkali waters, or silty waters), and is not prone to rust and aging. The anti-friction properties of the coating also make the sub-line ring rotate more smoothly, reducing wear and noise during frequent casting and reeling.

[0024] Wide range of applications: This figure-eight ring connection device is compatible with fishing lines of different materials and diameters, including nylon monofilament lines, braided PE lines, etc. The knotless connection method is particularly suitable for high-strength PE braided lines, avoiding the problem of low knot tension in such fishing lines. At the same time, this device can be applied to various fishing methods such as freshwater fishing, sea fishing, and lure fishing, as well as a wide range of target fish from lightweight small fish to large fish. In complex situations such as turbulent waters, waters with obstacles, or competitive fishing, the high-strength, anti-entanglement connection means provided by the present invention can play a significant advantage and ensure the reliability and safety of the fishing group.

[0025] In summary, through the innovative structural design, the present invention realizes a knotless and high-strength connection between the fishing line and the swivel, significantly improving the deficiencies of the traditional connection method in terms of strength, anti-fatigue, and anti-twisting. It has the advantages of simple and compact structure, safe and efficient use, and strong adaptability, demonstrating outstanding progressiveness and creativity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the present invention will be further described below with reference to the accompanying drawings. In the drawings:

[0027] Figure 1 is a three-dimensional structural schematic diagram of a swivel that can be knotlessly connected according to the present invention;

[0028] Figure 2 is Figure 1 a side view structural schematic diagram of the swivel shown;

[0029] Figure 3 is Figure 1 a cross-sectional view structural schematic diagram of the swivel shown;

[0030] Figure 4 is a schematic diagram of the main line threading and knotting to form a self-locking state.

[0031] DESCRIPTION OF THE REFERENCE NUMERALS:

[0032] 1 - Hollow cap;

[0033] 2 - Perforation;

[0034] 3 - Structural column;

[0035] 4 - Tapered surface;

[0036] 5 - Sub-line connection ring;

[0037] 6 - Connection column;

[0038] 7 - Ring-shaped blocking surface;

[0039] 8 - Cavity;

[0040] 9 - Polymer coating;

[0041] 10 - Main line;

[0042] 11 - Knot;

[0043] 12 - Chamfer transition zone. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] The following is a detailed description of an embodiment of an eight - shaped ring with a knot - free connection of the main line of the present invention in conjunction with the accompanying drawings. It should be understood that these embodiments are only used to illustrate the present invention and do not limit the protection scope of the present invention.

[0045] As Figures 1 to 4 shown, the eight - shaped ring with a knot - free connection of the main line provided by the present invention is specifically as follows:

[0046] I. Structural composition

[0047] This device includes a hollow cap 1, and a circular perforation 2 is provided at its top for the main line 10 to pass through. The perforation 2 runs through the hollow cap and is located at the center of the axis. Its inner diameter is slightly smaller than the outer diameter of the knot 11 after the fishing line is knotted to form a limiting function. The inner wall of the perforation 2 is preferably provided with a polymer coating 9, such as polytetrafluoroethylene or other low - friction and highly corrosion - resistant materials, for reducing wear during threading and improving durability.

[0048] The bottom surface of the hollow cap 1 is provided with an annular blocking surface 7 for physically limiting the knotted head 11 after knotting, so as to achieve the "self - locking connection" state of the main line. Preferably, a chamfer or arc transition section 12 is provided at the inner edge of the blocking surface 7, and its angle is controlled between 30° and 45° or has a curvature radius of 1 - 2 mm, so as to improve the fitting stability of the knot head when tightened and avoid cutting the line body.

[0049] A structural column 3 is connected below the hollow cap 1. The top of the structural column 3 is provided with a conical surface 4 for guiding threading. The conical surface is aligned with the center of the perforation 2, which helps to play a guiding role during the process of threading and pulling the main line.

[0050] The hollow cap 1 and the structural column 3 are connected by a connecting column 6 and form an integral injection - molded or die - cast metal structure to enhance strength.

[0051] The bottom of the structural column 3 is hollow to form a cavity 8, and a rotatable sub - line connection ring 5 is arranged in the cavity. The connection ring is installed in the cavity through a pin shaft, a ring shoulder or a limiting groove structure to ensure that it can freely rotate around the axis within a range of 360°, for connecting the sub - line, and offsetting the torsional force of the fish during fishing to prevent the sub - line from winding around the main line.

[0052] It is recommended that the perforation size be controlled to have a clearance of 0.05 - 0.1 mm based on the wire diameter to ensure that the knot head is effectively blocked after being pulled back;

[0053] The thickness of the polymer coating is controlled at 10 - 50 μm, which not only prevents corrosion but also does not affect the smoothness of threading;

[0054] The hollow cap, the connecting column and the structural column are preferably made of high - strength stainless steel, titanium alloy or engineering plastic materials, with both strength and weather resistance.

[0055] II. Usage method

[0056] Threading the main line and tying a knot:

[0057] The angler threads the main line 10 through the perforation 2 until its end extends from the bottom of the hollow cap 1. Subsequently, a knot is tied at the end of the main line to form a knot head 11 composed of a figure-eight knot or a single structure, and its outer diameter should be larger than the diameter of the perforation 2.

[0058] Pulling back to form self-locking:

[0059] The angler then pulls the other end of the main line, causing the knot head 11 to be pulled back to the annular blocking surface 7 and clamped in the limiting space between the outlet of the perforation 2 and the blocking surface 7. Due to the cooperation of the size design and the chamfer structure, the knot will stably fit on the blocking surface to form a self-locking state without additional auxiliary fixation.

[0060] Cutting off the end of the line:

[0061] The excess thread can be cut off after leaving 1 - 2 mm to avoid interfering with the transmission of the pulling force of the main line and ensure the integrity of the knot structure at the same time.

[0062] Connecting and rotating the sub-line:

[0063] The sub-line is connected to the sub-line connecting ring 5 by means of knotting, binding or quick buckles, etc. Since the sub-line connecting ring 5 can rotate freely, when the fish struggles violently or rotates at high speed during fishing, the connecting ring will rotate synchronously with the direction of the force, effectively releasing the torsional moment and preventing the main and sub-lines from winding.

[0064] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A figure eight ring with a main line knotless connection, characterized in that: include: A hollow cap having a perforation extending through the top end thereof; A structural column, wherein a sub-line connecting ring is rotatably provided at the bottom end of the structural column; A connecting column, used to connect the hollow cap and the structural column into an integrated structure; The bottom surface of the hollow cap is provided with an annular blocking surface with an inner diameter larger than the through hole, so that the main line knot passing through the through hole and tied is limited by the annular blocking surface in the pulled-back state, thereby forming a knotless self-locking connection structure of the main line; A cavity is provided at the bottom end of the structural column, and the sub-line connecting ring is rotatably arranged in the cavity, so that the sub-line can freely rotate 360 ​​degrees relative to the structural column during use.

2. The figure eight ring according to claim 1, characterized in that: The diameter of the perforation matches the target fishing line diameter, and the size of the perforation cooperates with the main line knot to form a limiting self-locking function. The inner surface of the perforation is a smooth structure or is provided with a polymer coating to reduce friction and improve protection.

3. The figure eight ring according to claim 1, characterized in that: The inner edge of the annular blocking surface is provided with a chamfer or an arc transition section, which is used to improve the fit of the fishing line when locking and prevent sharp angles from damaging the fishing line.

4. The figure eight ring according to claim 1, characterized in that: The top surface of the structural column is provided with a conical surface, and the through hole is aligned with the center of the conical surface, which is used to guide the line body to smoothly enter and fit the structure during the main line threading and retraction process.

5. The figure eight ring according to claim 1, characterized in that: The cavity is a cylindrical cavity, and the sub-line connecting ring is provided with a shoulder or a limit ring in the cavity to ensure that it can rotate in both axial and radial directions without falling out.

6. The figure eight ring according to claim 1, characterized in that: The hollow cap, the connecting column and the structural column are an integrated structure, and the material used is high-strength corrosion-resistant stainless steel.

7. The figure eight ring according to claim 1, characterized in that: The polymer coating is selected from one or more of polytetrafluoroethylene, polyimide or polyetheretherketone.

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